Thanks Michael, I’m hoping it’s as simple as a stuck fuel petcock cutting off fuel flow.
There is also this good troubleshooting procedure on Moyer Marine’s site: http://www.moyermarine.com/newsletters/2-1-14.html. First disambiguates fuel vs. ignition problem, then delves deeper based on what kind of problem it is. Cheers, Randy > On Sep 21, 2017, at 5:27 PM, Michael Cotton via CnC-List > <cnc-list@cnc-list.com> wrote: > > You could do a short crank and stop then CAREFULLY feel the starters cables > for heat(don't forget the ground). Intermittent no crank could also be > inside the starter solenoid. One more thing on the no start but cranking. If > you are still using a distributor with points the symptom you are giving > sounds like a bad condenser. I used to have a 12v engine analyzer scope. It > was wicked good at solving these kinds of problem. Good luck. > Michael Cotton > > On Thursday, September 21, 2017, 5:09:54 PM MDT, svpegasus38 via CnC-List > <cnc-list@cnc-list.com> wrote: > > > Glad you found the problem. > > > > Sent from my T-Mobile 4G LTE Device > Doug Mountjoy > POYC > Pegasus (for sale) > Lf38 > Rebecca Leah LF39 > > -------- Original message -------- > From: Randy Stafford via CnC-List <cnc-list@cnc-list.com> > Date: 9/21/17 15:40 (GMT-08:00) > To: cnc-list@cnc-list.com > Cc: Randy Stafford <randy.staff...@comcast.net> > Subject: Re: Stus-List A4 Cutting Out > > Update on this - went down to the boat today, pulled plugs, changed oil. No > sign whatsoever of water in the engine. Then on testing, she started right > up, ran smoothly at idle for several minutes, then shut down suddenly. And > wouldn’t restart after a few short cranking attempts (with raw water intake > closed). From that I was relieved that the starter and solenoid and starter > circuit were working, and the ignition circuits. > > Per Occam’s Razor I removed and inspected the fuel petcock, as it’s been > troublesome this year (it became increasingly difficult to turn, then > suddenly easier to turn, hmmm…). I believe it to be the culprit. It was > stuck in what appeared to be a closed position, and turning its handle didn’t > change that. I suspect it may have been just open enough to allow the fuel > line to fill, given enough time. But once the engine consumed the fuel in > the line, it wasn’t open enough to keep supplying the engine. > > I bought a new fuel shut-off valve from West Marine and will install it > tomorrow and report back. As for my starter not working Sunday when I pushed > the button, I’ll let that remain a mystery unless it happens again. Maybe I > didn’t have the ignition switch pulled out far enough when I pressed the > button. > > Cheers, > Randy > > > On Sep 18, 2017, at 8:29 AM, Randal Stafford via CnC-List > > <cnc-list@cnc-list.com> wrote: > > > > Listers- > > > > I’m having a problem with my Atomic 4, and hoped you might have some > > thoughts to share. > > > > When I went out for a sail yesterday, she started right up, as always. But > > then she cut out heading away from the marina. Initially I suspected a > > fuel flow problem, as the petcock on the tank has become difficult to turn. > > After ensuring the petcock was in the open position and the tank was full, > > she started right up again and ran smoothly for a good 10 minutes. Then > > she cut out again, and wouldn’t start back up after some cranking. I > > sailed for a couple hours anyway. When I tried to start her to come back > > in, nothing happened when I pressed the starter button. I assumed my > > batteries didn’t have enough amperage for the starter, after all the > > previous cranking, though my other electronics were running fine. So I > > docked under sail power, pulled the batteries, and brought them home to > > charge. They both tested at 12.7 volts and 83% charge when I put them on > > my charger. Now they’re both at 100% and 12.9 volts. > > > > So I now suspect a faulty ignition circuit, and possibly a faulty starter > > circuit. Perhaps a loose connection or broken wire is having the same > > effect as pushing in the ignition switch. I’ve yet to get into the > > lazarette and start tracing the wiring and testing with a multimeter, but > > that’s my next step. I thought I’d write the list first to see if anyone > > has any quick hypotheses. > > > > Thanks in Advance, > > Randy Stafford > > S/V Grenadine > > C&C 301- #7 > > Ken Caryl, CO > > _______________________________________________ > > > > This list is supported by the generous donations of our members. If you > > wish to make a contribution to offset our costs, please go to: > > https://www.paypal.me/stumurray > > > > All Contributions are greatly appreciated! > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > _______________________________________________ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray <https://www.paypal.me/stumurray> > > All Contributions are greatly appreciated! > _______________________________________________ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated!
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